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Interaction between perch ( Perca fltuviatilis ), and brown trout, ( Salmo trutta )
Author(s) -
Burrough R. J.,
Kennedy C. R.
Publication year - 1978
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1978.tb03429.x
Subject(s) - stocking , brown trout , perch , salmo , biology , fishery , trout , fish <actinopterygii> , population , demography , sociology
A decline in the growth rate of perch in Malham Tarn, Yorkshire, has occurred in recent times. This was found to coincide precisely with the resumption of stocking of brown trout, after a period of several years during which no stocking took place. In the absence of any other known correlating factor, it is suggested that the increase in population density of the trout may be responsible for the observed decline in perch growth.